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CHAPTER 7: MAINTENANCE
Breaker trip counter
339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
When the total number of breaker trips detected reaches the TRIP COUNTER LIMIT
setpoint, an output will occur.
The following path is available using the keypad. For instructions on how to use the
keypad, please refer to Chapter 3 - Working with the Keypad.
PATH:
MAINTENANCE > M3 BKR MAINTENANCE > BKR TRIP COUNTER
TRIP COUNT FUNC
Range: Disabled, Alarm, Latched Alarm
Default: Disabled
The selection of the Latched Alarm, or Alarm setting enables the BKR Trip Counter
function. The "ALARM" LED will turn on when the Total breaker trips reaches the TRIP
COUNTER LIMIT setting. The "ALARM" LED will flash when the BKR Trip Counter reaches
the TRIP COUNTER LIMIT setting with function selected as Alarm, and will reset, when the
trip counter is reset. The "ALARM" LED will latch when Latched Alarm is selected, until
the counter is reset, and the Reset command is initiated.
Any or all of output relays 4 to 6 can be selected to operate when the number of breaker
trips reaches the "TRIP COUNTER LIMIT," regardless of the selected trip counter function.
INITIAL TRIPS
Range: 0 to 10000 in steps of 1
Default: 0
This setting defines the number of breaker trips, that occurred before enabling the
breaker trip counter for breaker monitoring.
TRIP COUNTER LIMIT
Range: 1 to 10000 trips in steps of 1
Default: 1 trip
This setting defines the limit number for breaker trips. The BKR TRIP COUNTER will
operate and produce an output if the number of breaker trips reaches the set limit.
OUTPUT RELAY 4 to 6
Range: Do not operate, Operate
Default: Do not operate
Any, or all, of output relays 4 to 6 can be selected to operate, upon the BKR TRIP
COUNTER condition.
M3 BREAKER MAINTENANCE
7–13
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